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Items from patient-oriented instruments can be integrated into interval scales to operationalize categories of the International Classification of Functioning, Disability and Health


Autor/in:

Cieza, Alarcos; Hilfiker, Roger; Boonen, Annelies; Chatterji, Somnath; Kostanjsek, Nenad; Üstün, Bedirhan; Stucki, Gerold


Herausgeber/in:

k. A.


Quelle:

Journal of Clinical Epidemiology, 2009, Volume 62 (Number 9), Seite 912-921, New York: Elsevier, ISSN: 0895-4356 (Print); 1878-5921 (Online)


Jahr:

2009



Link(s):


Ganzen Text lesen (PDF | 319 KB)


Abstract:


Objective:

To exemplify the construction of interval scales for specified categories of the International Classification of Functioning, Disability and Health (ICF) by integrating items from a variety of patient-oriented instruments.
Study design and setting: Psychometric study using data from a convenience sample of 122 patients with rheumatoid arthritis. Patients completed six different patient-oriented instruments. The contents of the instrument items were linked to the ICF. Rasch analyses for ordered-response options were used to examine whether the instrument items addressing the ICF category b130: Energy and drive functions constitute a psychometrically sound interval scale.

Results:

Nineteen items were linked to b130: Energy and drive functions. Sixteen of the 19 items fit the Rasch model according to the chi-square (chi(2)) statistic (chi(2)(df equal 32) equal 38.25, P equal 0.21) and the Z-fit statistic (Z(Mean) equal 0.451, Z(SD) equal 1.085 and Z(Mean) equal minus 0.223, Z(SD) equal 1.132 for items and persons, respectively). The Person Separation Index r(beta) was 0.93.

Conclusion:

The ICF category interval scales to operationalize single ICF categories can be constructed. The original format of the items included in the interval scales remains unchanged. This study represents a step forward in the operationalization and future implementation of the ICF.


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Schlagworte:
Informationen in der ICF:


Dokumentart:


Zeitschriftenbeitrag / Forschungsergebnis / Online-Publikation




Bezugsmöglichkeit:


Journal of Clinical Epidemiology
Homepage: https://www.sciencedirect.com/journal/journal-of-clinical-ep...

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Referenznummer:

R/ZA6408


Informationsstand: 06.06.2011

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